http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-2.xsd
User's manual for the National Water-Quality Assessment Program Invertebrate Data Analysis System (IDAS) software, version 3
National Water-Quality Assessment Program (U.S.)
Title from PDF title screen (viewed on Dec. 4, 2003).
"National Water-Quality Assessment Program."
Paper version also available from U.S. Geological Survey Branch of Information Services, Denver, Colo.
System requirements: Adobe Acrobat Reader (to access PDF version).
Mode of access: Internet from the USGS web site. Address as of 3/11/04: http://nc.water.usgs.gov/reports/ofr03172/pdf/report.pdf; current access available via PURL.
Information storage and retrieval systems
User's manual for the National Water-Quality Assessment Program Invertebrate Data Analysis System (IDAS) software
U.S. Geological Survey open-file report ; 03-172